a910049aea
This is a proof of concept RTCD implementation to replace the current
system of nested includes, prototypes, INVOKE macros, etc. Currently
only the decoder specific functions are implemented in the new system.
Additional functions will be added in subsequent commits.
Overview:
RTCD "functions" are implemented as either a global function pointer
or a macro (when only one eligible specialization available).
Functions which have RTCD specializations are listed using a simple
DSL identifying the function's base name, its prototype, and the
architecture extensions that specializations are available for.
Advantages over the old system:
- No INVOKE macros. A call to an RTCD function looks like an ordinary
function call.
- No need to pass vtables around.
- If there is only one eligible function to call, the function is
called directly, rather than indirecting through a function pointer.
- Supports the notion of "required" extensions, so in combination with
the above, on x86_64 if the best function available is sse2 or lower
it will be called directly, since all x86_64 platforms implement
sse2.
- Elides all references to functions which will never be called, which
could reduce binary size. For example if sse2 is required and there
are both mmx and sse2 implementations of a certain function, the
code will have no link time references to the mmx code.
- Significantly easier to add a new function, just one file to edit.
Disadvantages:
- Requires global writable data (though this is not a new requirement)
- 1 new generated source file.
Change-Id: Iae6edab65315f79c168485c96872641c5aa09d55
135 lines
3.3 KiB
C
135 lines
3.3 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef __INC_VP8D_INT_H
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#define __INC_VP8D_INT_H
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#include "vpx_config.h"
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#include "vp8/common/onyxd.h"
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#include "treereader.h"
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#include "vp8/common/onyxc_int.h"
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#include "vp8/common/threading.h"
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#if CONFIG_ERROR_CONCEALMENT
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#include "ec_types.h"
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#endif
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typedef struct
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{
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int ithread;
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void *ptr1;
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void *ptr2;
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} DECODETHREAD_DATA;
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typedef struct
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{
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MACROBLOCKD mbd;
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int mb_row;
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int current_mb_col;
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short *coef_ptr;
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} MB_ROW_DEC;
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typedef struct
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{
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int64_t time_stamp;
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int size;
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} DATARATE;
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typedef struct VP8D_COMP
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{
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DECLARE_ALIGNED(16, MACROBLOCKD, mb);
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DECLARE_ALIGNED(16, VP8_COMMON, common);
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vp8_reader bc, bc2;
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VP8D_CONFIG oxcf;
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const unsigned char *fragments[MAX_PARTITIONS];
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unsigned int fragment_sizes[MAX_PARTITIONS];
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unsigned int num_fragments;
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#if CONFIG_MULTITHREAD
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/* variable for threading */
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volatile int b_multithreaded_rd;
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int max_threads;
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int current_mb_col_main;
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int decoding_thread_count;
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int allocated_decoding_thread_count;
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int mt_baseline_filter_level[MAX_MB_SEGMENTS];
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int sync_range;
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int *mt_current_mb_col; /* Each row remembers its already decoded column. */
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unsigned char **mt_yabove_row; /* mb_rows x width */
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unsigned char **mt_uabove_row;
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unsigned char **mt_vabove_row;
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unsigned char **mt_yleft_col; /* mb_rows x 16 */
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unsigned char **mt_uleft_col; /* mb_rows x 8 */
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unsigned char **mt_vleft_col; /* mb_rows x 8 */
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MB_ROW_DEC *mb_row_di;
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DECODETHREAD_DATA *de_thread_data;
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pthread_t *h_decoding_thread;
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sem_t *h_event_start_decoding;
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sem_t h_event_end_decoding;
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/* end of threading data */
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#endif
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vp8_reader *mbc;
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int64_t last_time_stamp;
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int ready_for_new_data;
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DATARATE dr[16];
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vp8_prob prob_intra;
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vp8_prob prob_last;
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vp8_prob prob_gf;
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vp8_prob prob_skip_false;
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#if CONFIG_ERROR_CONCEALMENT
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MB_OVERLAP *overlaps;
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/* the mb num from which modes and mvs (first partition) are corrupt */
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unsigned int mvs_corrupt_from_mb;
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#endif
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int ec_enabled;
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int ec_active;
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int input_fragments;
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int decoded_key_frame;
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int independent_partitions;
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int frame_corrupt_residual;
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} VP8D_COMP;
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int vp8_decode_frame(VP8D_COMP *cpi);
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#if CONFIG_DEBUG
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#define CHECK_MEM_ERROR(lval,expr) do {\
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lval = (expr); \
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if(!lval) \
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vpx_internal_error(&pbi->common.error, VPX_CODEC_MEM_ERROR,\
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"Failed to allocate "#lval" at %s:%d", \
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__FILE__,__LINE__);\
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} while(0)
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#else
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#define CHECK_MEM_ERROR(lval,expr) do {\
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lval = (expr); \
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if(!lval) \
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vpx_internal_error(&pbi->common.error, VPX_CODEC_MEM_ERROR,\
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"Failed to allocate "#lval);\
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} while(0)
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#endif
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#endif
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